Electric light bulb with oscillating filament

ABSTRACT

2. A ELECTRIC LIGHT BULB HAVING A FILAMENT AS THE ONLY MOVABLE PART, SAID FILAMENT ADAPTED TO BE ILLUMINATED WHEN SAID BULB IS ATTACHED TO A SOURCE OF A.C ELECTRICAL CURRENT, SAID BULB HAVING A STEM AND A MAGNET ATTACHED TO SAID PIN MOUNTED ON SAID STEM AND A MAGNET ATTACHED TO SAID SUPPORT PIN ADJACENT SAID FILAMENT TO PROVIDE DIRECT MOVEMENT OF THE ILLUMINATED FILAMENT TO PROVIDE DIRECT MOVEMENT SET UP BY THE A.C. ELECTRICAL CURRENT TO MAINTAIN CONTINUING VIBRATION OF THE ILLUMINATED FILAMENT SIMULATING A FLICKERING FLAME OF A CANDLE, SAID FILAMENT CONSISTING ESSENTIALLY OF A SINGLE LOOP WITH ALL PORTIONS THEREOF SPACED FROM SAID MAGNET AND SAID PIN, AT LEAST A SUBSTINTAL PORTION OF SAID FILAMENT LYING GENERALLY IN A PLANE, SAID MAGNET HAVING A MAJOR AXIS DISPOSED GENERALLY NORMAL TO SAID PLANE, AND SAID PLANE INTERSECTING SAID MAGNET.

July 18. 1972 R. J. KYP 27,443

ELECTRIC LIGHT BULB WITH OSCILLATING FILAMENT Original Filed Feb. 21,1964 f ov erfcj United States Patent 27,443 ELECTRIC LIGHT BULB WITHOSCILLATING FILAMENT Robert J. Kyp, 526 Geneva Road, Glen Ellyn, Ill.60137 Original No. 3,237,053, dated Feb. 22, 1966, Ser. No.

346,481, Feb. 21, 1964. Application for reissue Jan.

29, 1971, Ser. No. 111,161

Int. Cl. Hb 41/16, 41/24 U.S. Cl. 315-267 3 Claims Matter enclosed inheavy brackets appears in the original patent but forms no part of thisreissue specification; matter printed in italics indicates the additionsmade by reissue.

My invention relates to the combination of an electric light bulb havinga filament with a magnet to move the filament into vibration to simulatethe flickering of a flame of a candle.

It is among the objects of my invention to attach or associate a magnetwithin to or with an electric light bulb having a filament, so as tooscillate the filament into vibration to simulate the flckering of aflame of a candle.

My invention also contemplates such other objects, advantages andcapabilities as will later more fully appear, and which are inherentlypossessed by my invention.

While I have shown in the accompanying drawings a preferred embodimentof my invention, yet it is to be understood that the same is susceptibleof modification and change without departing from the spirit of myinvention.

Referring to the drawings, FIG. 1 is a top plan view; FIGS. 2 and 3 arevertical elevational views at right angles to each other; FIG. 4 is avertical sectional view; FIG. 5 is a bottom plan view of the preferredform of my electric light bulb with oscillating filaments; and FIG. 6 isa vertical elevational view of a modified form of my device.

The embodiment selected to illustrate my invention comprises an electriclight bulb 10 having a closed transparent elongated glass body member 11having at its lower portion a threaded part 12 spaced from a bottomelectrical contact portion 13 by an insulated portion 14. Extendingupwardly from said contact portion 13, within body member 11 is one leg15 of filament 16. The other leg 17 of filament 16 extends to threadedpart 12. Legs 15 and 17 of filament 16 are attached to glass stem press18 supported on contact portion 13 and have enlarged extensions 19 and20 therebeyond. An elongated loop portion 21 extends upwardly withinbody member 11 and connects extensions 19 and 20. Loop portion 21converges to a curved upper end 22. Filament 16 is preferably made ofcarbon.

Positioned within loop 21 in body member 11, support pin 23 has itslower end mounted centrally into stem press 18. The upper end of supportpin 23 is curved to support and is spot Welded to cylindrical magnet 24,which is positioned at right angles to the axis of stem press 18.

In use When bulb 10 is screwed into an electric light socket leading toan electrical source of A.C. current, contact portion 13 receiveselectricity which is communicated to filament 16 to light upincandescent loop portion 21. Magnet 24 moves loop portion 21, and theelectric current moves it back so that there is a continuing oscillatingor vibrating of loop portion 21. This provides a moving lighted loopportion which simulates the flickering of a flame of a candle.

While I prefer as heretofore set forth to house my magnet 24 within thebody portion 11 of the bulb 10, yet my magnet 24 may be attached to theexterior of the bulb, and if increased in magnetic power he positionedin suflicient proximity to the bulb to operate the filament and make itmove.

As shown in FIGS. 1-4 of the drawing, the filament 16 includes only asingle loop 21, and this loo lies generally in a plane. Magnet 24 is acylindrical magnet and is supported so that its major axis is generallynormal to the plane of the loop and so that the magnet 24 is intersectedby the plane of the loop 21 The single loop 21 is disposed so that allportions of the filament are spaced from the magnet 24 and the pin 23.

Having thus described my invention, I claim:

[1. An electric light bulb having a filament as the only movable part,said filament adapted to be illuminated when said bulb is attached to asource of A.C. electrical current, said bulb having a stem mountedtherein, a sup port pin mounted on said stem and a magnet attached tosaid support pin adjacent said filament to provide direct movement ofthe illuminated filament and with return movement set up by the A.C.electrical current to maintain continuing vibration of the illuminatedfilament simulating a flickering flame of a candle] 2. An electric lightbulb having a filament as the only movable part, said filament adaptedto be illuminated when said bulb is attached to a source of A.C.electrical current, said bulb having a stern mounted therein, a supportpin mounted on said stem and a magnet attached to said support pinadjacent said filament to provide direct movement of the illuminatedfilament and with return movement set up by the A.C. electrical currentto maintain continuing vibration of the illuminated filament simulatinga flickering flame of a candle, said filament consisting essentially ofa single loop with all portions thereof spaced from said magnet and saidpin, at least a substantial portion of said filament lying generally ina plane, said magnet having a major axis disposed generally normal tosaid plane, and said plane intersecting said magnet.

3. The bulb of claim 2, said filament comprising a carbon filament.

4. The bulb of claim 2, said magnet being attached to said pin by a spotweld.

References Cited The following references, cited by the Examiner, are ofrecord in the patented file of this patent or the original patent.

UNITED STATES PATENTS 251,548 12/1881 Edison 313- 263,141 8/1882 Edison313-160 X 1,279,789 9/1918 Tilley 313-160 2,473,626 6/1949 White 313-1602,602,886 7/1952 Fields 250-199 X FOREIGN PATENTS 368,913 12/1906 France315-267 806,474 12/1958 Great Britain.

NATHAN KAUFMAN, Primary Examiner US. Cl. X.R.

